DM. I hated the 243 for deer until I started using the Partition bullets. Other bullets worked sometimes but the Partition works every time. I would not even carry the 243 out the door without Nosler Partitions. I use them in most of my rifles although I use the ballistic tip in some of my bigger rifles. I would limit my own shots with the 243 at deer to 250 yards Max. I don't like shooting game much past 300 yards with any rifle.